90827271909 has 24 divisors (see below), whose sum is σ = 146166913152. Its totient is φ = 53875619520.

The previous prime is 90827271893. The next prime is 90827271943. The reversal of 90827271909 is 90917272809.

It is not a de Polignac number, because 90827271909 - 2⁴ = 90827271893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90827271209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9755424 + ... + 9764729.

It is an arithmetic number, because the mean of its divisors is an integer number (6090288048).

Almost surely, 2^90827271909 is an apocalyptic number.

90827271909 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

90827271909 is a deficient number, since it is larger than the sum of its proper divisors (55339641243).

90827271909 is a wasteful number, since it uses less digits than its factorization.

90827271909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19520217 (or 19520214 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The spelling of 90827271909 in words is "ninety billion, eight hundred twenty-seven million, two hundred seventy-one thousand, nine hundred nine".